Examlex
Which of the following is true of the blogosphere?
External Validity
Relates to whether an experiment has in fact captured the external world that the researcher is investigating.
Attrition
The loss of participants during the course of a study, which can impact the study's outcomes and generalizability.
Nonprobability Sampling
Sampling based on a judgment by the researcher.
Random Assignment
A method in research design that allocates participants to different groups purely based on chance, ensuring that each participant has an equal opportunity to be assigned to any given group.
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